package io;

import java.io.*;

public class CopyDemo3Buffered {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("1000.jpg");
        BufferedInputStream bis = new BufferedInputStream(fis);
        FileOutputStream fos = new FileOutputStream("1000_2.jpg");
        BufferedOutputStream bos = new BufferedOutputStream(fos);
        long start = System.currentTimeMillis();
        int d;
        while ((d = bis.read())!=-1){
            bos.write(d);
        }
        long end = System.currentTimeMillis();
        System.out.println(end-start);
        bis.close();
        bos.close();
    }
}
